public class TestSelect {
    public static void main(String args[]){


            for(int all = 1;all<50;) {

                if (all <26) {
                    System.out.println("OK");
                    all++;
                } else if (all <40) {
                    System.out.println("上");
                    all++;
                } else {
                    System.out.println("input");
                    all++;
                }
            }

    }
}
